Burr spokesman David Ward said Monday that the Republican senator wants to ask Sotomayor a few more questions about her record.

"He will be able to make a more thorough assessment of her qualifications after meeting with her next week and asking specific, substantive questions to ensure that she is committed to upholding the Constitution and the rights and freedoms it protects," Ward said in a statement.

A handful of Republicans--Lugar (Ind.), Snowe (Maine), Collins (Maine), Martinez (Fla.)--have announcd their support for Sotomayor. But Burr would be the most conservative Republican so far to support the President's nominee.

Coincidentally, the North Carolina Republican is up for re-election in 2010.